期刊：
Computer-Aided Design and Applications,2023年20(S2):89-98 ISSN：1686-4360
通讯作者：
Zhao, Jiajia(zhaojiajia@mail.ccnu.edu.cn)
作者机构：
[Zhang, Yan] School of Sports Science and Technology, Wuhan Sports University, Wuhan;430079, China;[Zhao, Jiajia] School of Physical Education, Central China Normal University, Wuhan;430000, China;[Zhang, Yan] 430079, China
通讯机构：
[Zhao, J.] S;School of Physical Education, China
摘要：
Following preventive behaviors is a key measure to protect people from infectious diseases. Protection motivation theory (PMT) suggests that perceived risk motivates individuals to take protective measures. The COVID-19 pandemic has posed unprecedented stress to the public, and changes in perceived risk may be more pronounced among college students than among other groups due to the related campus lockdown. With 1,119 college students recruited as research subjects, a quantitative research was conducted in Wuhan, China, to deduce the relationship between the perceived risk and preventive behavior of college students, as well as between the mediation effect of individual affect and the moderating effect of physical exercise. The results showed that the preventive behavior of college students was significantly affected by perceived risk, and both positive affect and negative affect played a mediating role between perceived risk and preventive behavior. Specifically, positive affect aided the relationship between perceived risk and preventive behavior, negative affect was detrimental to their relationship, and the mediation effect of positive affect is significantly higher than that of negative affect. Furthermore, physical exercise played a moderating role in the mediation effects of positive affect and negative affect. Therefore, appropriate measures should be taken to strengthen Chinese college students' perceived risk and provide them with corresponding guidance. The importance of physical exercise should also be emphasized to help college students with low perceived risk reduce negative affect, increase positive affect, and promote their preventive behavior.
作者机构：
[Li, Fang] Cent China Normal Univ, Sch Phys Educ, Wuhan, Peoples R China.;[Li, Fang] Cent China Normal Univ, Postdoctoral Res Mobile Stn Phys Educ, Wuhan, Peoples R China.;[Ho, Chia-An; Yeh, Hung-Chih; Ho, Chin-Shan; Tu, Yu-Tsai; Kuo, Ying-Chen; Yang, Cheng-Pang] Natl Taiwan Sport Univ, Grad Inst Sports Sci, 250 Wenhua 1st Rd, Taoyuan, Taiwan.;[Tu, Yu-Tsai] Taipei City Hosp, Dept Phys Med & Rehabil, Zhengzhou Branch, Zhengzhou, Taiwan.;[Yang, Cheng-Pang] Chang Gung Univ, Div Sports Med, Dept Orthoped Surg, Coll Med,Chang Gung Mem Hosp, Linkou, Taiwan.
通讯机构：
[Ho, CS ] N;Natl Taiwan Sport Univ, Grad Inst Sports Sci, 250 Wenhua 1st Rd, Taoyuan, Taiwan.
摘要：
Conventionally, efficiency is indirectly estimated through a respiratory gas analyser (oxygen, carbon dioxide), which is a complex and rather costly calculation method that is difficult to perform in many situations. Therefore, the present study proposed a modified definition of efficiency, called the efficiency factor (EF) (i.e., the ratio of work to the corresponding exercise intensity), and evaluated the relation between the EF and maximal oxygen uptake ( $${\dot{\text{V}}\text{O}}_{2\max }$$ ), as well as compared the prediction models established based on the EF. The heart rate (maximal heart rate: 186 ± 6 beats min−1), rating of perceived exertion (19 ± 1), and $${\dot{\text{V}}\text{O}}_{2\max }$$ (39.0 ± 7.1mLkg−1min−1) of 150 healthy men (age: 20 ± 2years; height: 175.0 ± 6.0cm; weight: 73.6 ± 10.7kg; body mass index [BMI]: 24.0 ± 3.0kgm−2; percent body fat [PBF]: 17.0 ± 5.7%) were measured during the cardiopulmonary exercise test (CPET). Through multiple linear regression analysis, we established the BMI model using age and BMI as parameters. Additionally, we created the PBF modelHRR utilizing weight, PBF, and heart rate reserve (HRR) and developed PBF modelEF6 and PBF modelEF7 by incorporating EF6 from the exercise stage 6 and EF7 from the exercise stage 7 during the CPET, respectively. EF6 (r = 0.32, p = 0.001) and EF7 (r = 0.31, p = 0.002) were significantly related to $${\dot{\text{V}}\text{O}}_{2\max }$$ . Among the models, the PBF modelEF6 showed the highest accuracy, which could explain 62.6% of the variance in the $${\dot{\text{V}}\text{O}}_{2\max }$$ at with a standard error of estimate (SEE) of 4.39mLkg−1min−1 (%SEE = 11.25%, p < 0.001). These results indicated that the EF is a significant predictor of $${\dot{\text{V}}\text{O}}_{2\max }$$ , and compared to the other models, the PBF modelEF6 is the best model for estimating $${\dot{\text{V}}\text{O}}_{2\max }$$ .
期刊：
Frontiers in Sports and Active Living,2023年4:1077211 ISSN：2624-9367
通讯作者：
Chen, Y.
作者机构：
[Fang, Xuemo] College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China;School of Physical Education, Central China Normal University, Wuhan, China;National Sports Industry Research Base, Central China Normal University, Wuhan, China;[Li, Jingyu] Youth League Committee, Wuhan Sports University, Wuhan, China;[Chen, Yuanxin] School of Physical Education, Central China Normal University, Wuhan, China, National Sports Industry Research Base, Central China Normal University, Wuhan, China
通讯机构：
[Chen, Y.] S;School of Physical Education, China
关键词：
government-enterprise relationship;Operation and management;reform;sports in China;Sports venues
摘要：
The management of sports venues has undergone a series of reforms since the People's Republic of China's establishment in 1949. The reform of management right is especially significant. It reflects the government–enterprise relationship and logic of government action. Utilizing the perspective of the government–enterprise relationship, this study systematically reviews the reform model for sports venues to incorporate Chinese characteristics. The aim of this study is to understand the relationship between the People's Republic of China's government and the market through the reforms implemented for the operation and management of sports venues. According to the study, the development and reform of sports venues in China has experienced government centralization, devolution, decentralization, and cooperation. The reform of sports venues' operation and management follows a “market-oriented government-led” model which reflects the government's logic. It is concluded that a “market-oriented government-led” model is essential for the promotion of comprehensive reforms for sports venues with Chinese characteristics. 2023 Fang, Chen and Li.
